*{
	margin: 0;
	padding: 0;
}
#d1{

	width: 500px;
	height: 300px;
	background:rgba(0,255,0,0.5);
	font-weight: bold;
	vertical-align: middle;
	text-decoration: line-through;
}
#d2{
	width: 100px;
	height: 100px;
	background-color: green;
	display: none;
	margin-top: 50px;
}